Entropy of Information Fields and Effects of Communications Errors on Legibility. Part A. Theory and Methodology.
Abstract
The work determines percentage of messages rendered nonintelligible as a function of character-error rate for general radio telegraph channels. Formulas are derived and their results confirmed by existing records. It is seen that for English text the influence of errors is different in man-to-man communications as compared to automatically utilized phrases--as, for example, in computer-to-computer instructions. For other information fields this property varies with usage. It is also of interest that it is not the loss of separate words due to errors, but the distortions of certain 'characters of essential entropy' which render a message nonintelligible. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 06, 1969
- Accession Number
- AD0864830
Entities
People
- G. V. Nolde
Organizations
- Navy Electronics Laboratory